BY P. CAMERON. 195 



RHOGADIN.E. 

 Doryetinl. 



Syngaster LEPiDus Bi'ulle, Hymen, iv., 459. 



New South Wales: Narrabeen (W. B. Guruey) ; Keiitliurbt 

 (W. W. Froggatt) — Van Dieman's Land (Brulle). 



Si//if/asfer Be., is a composite genus, which is sjilit u]) by 

 Szepligeti into four. Brulle's Section 3 of Si/iiyasfcr (that 

 containing S. lepldus and S. aiinuhconiis, both from Aus- 

 tralia) he does not define. As it seems to be a good genus, I 

 give a generic and specific description of it. In form and 

 general colouration, the species is not unlike Hecahohix quad- 

 ricolor Cam. ; in fact, if the obliteration, by the bullating, of 

 the second transverse cubital nervure had gone slightly far- 

 ther, the species might be referred to the Hecuholhii. 



Head cubital, temples longer than eyes, rounded, the occi- 

 put margined. Eyes comparatively small, oval ; the malar 

 space as long as these. Wings with three cubital cellules, the 

 basal two small, first longer and wider than second, which is 

 narrowed in front : basal two abscissae of radius short, equal 

 in length, the third fully four times longer than both united ; 

 recurrent nervure received at apex of first cubital cellule, 

 transverse median interstitial. Anal nervure interstitial, 

 radius issuing from shortly beyond the middle of stigma : the 

 three transverse nervures in hind wings are all united. Base of 

 metanotum with a short longitudinal keel. Mesonotum trilo- 

 bate : mesosternum bordered by a distinct smooth furrow. 

 Abdomen sessile, the first segment of almost equal width, 

 about one-half longer than wide : there is a curved, crenu- 

 lated furrow shortly beyond the middle of second segment ; 

 beyond it, is a straight crenulated furrow : and beyond this, a 

 straight smooth one : penultimate segment more than twice 

 the length of the last, and slightly longer than the preceding. 

 Legs stout, moderately long ; spurs and calcaria short and 

 sto\it. Front not excavated. Fore tarsi twice as long as the 

 tibiae. 



